When to plant potatoes in Oregon and Washington

In Portland: Plant seed potatoes Mar 15 – Apr 26. In Bend: May 12 – Jun 23. Find your city below.

Use certified seed potatoes. Hill soil around stems as they grow.

Potatoes planting dates by city

City	Plant in the garden
Astoria, OR	Apr 1 – May 13
Baker City, OR	Apr 27 – Jun 8
Bend and Redmond, OR	May 12 – Jun 23
Burns, OR	May 14 – Jun 25
Coos Bay and North Bend, OR	Apr 1 – May 13
Eugene, OR	Mar 15 – Apr 26
Gresham, OR	Mar 15 – Apr 26
Klamath Falls, OR	May 12 – Jun 23
Medford, OR	Mar 15 – Apr 26
Pendleton, OR	Apr 1 – May 13
Portland, OR	Mar 15 – Apr 26
Roseburg, OR	Mar 15 – Apr 26
Salem, OR	Mar 15 – Apr 26
The Dalles, OR	Apr 1 – May 13
Wilsonville and Canby, OR	Mar 15 – Apr 26
Aberdeen and Hoquiam, WA	Apr 1 – May 13
Bellingham, WA	Mar 15 – Apr 26
Ellensburg, WA	Apr 15 – May 27
Everett, WA	Mar 15 – Apr 26
Forks, WA	Apr 1 – May 13
Moses Lake, WA	Apr 1 – May 13
Olympia, WA	Apr 1 – May 13
Omak and Okanogan, WA	Apr 15 – May 27
Seattle and Tacoma, WA	Mar 15 – Apr 26
Spokane, WA	Apr 15 – May 27
Tri-Cities (Pasco, Kennewick, Richland), WA	Apr 1 – May 13
Vancouver, WA	Mar 15 – Apr 26
Walla Walla, WA	Apr 1 – May 13
Wenatchee, WA	Apr 1 – May 13
Yakima, WA	Apr 10 – May 22

Prepare the bed: loosen the soil and mix in an inch or two of compost.
Plant seed potatoes on your city's dates, 4 inches deep in a trench, 12 inches apart in rows 30 inches apart. Cut large ones into pieces with at least two eyes each.
As plants grow, pile soil or straw around the stems so the potatoes stay covered.
Harvest: Dig new potatoes when the plants flower. For storage potatoes, wait two weeks after the tops die back.

Wireworms in beds that were recently lawn. Grow potatoes in an established bed if you can.